Journal-bearing.



No. 730327. I PATENTED JUNE 9, 1903. G. A. WOODMAN.

JOURNAL BEARING. APPLICATION nun my 26, 1902.

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UNITED STATES Patented June 9, 1903.

PATENT OFFICE.

GEORGE A. WOODMAN, OF CHICAGO, ILLINOIS, ASSIGNOR TO AUGUST J.

' VVEIL, OF NEW YORK, N. Y.

JOURNAL-BEARING.

SPECIFICATION forming part of LettersPatent No. 730,327, dated June 9, 1903.

Application filed May 26, I902. Serialvli'o. 109,039- (No model.)

The primary object of the invention is to reduce the cost of manufacture of the hear ing without in any Way impairing its strength or changing its general character and opera; tion, and this I accomplish by providing for the bearing a back which is made of malleable iron or other suitable metal and permanently uniting the back with the body.

I have illustrated my invention as embodied in the universal bearing in the accompanying drawings, in which Figure 1 is a top plan view. Fig. 2 is a sectional view on the line 2 2 of Fig. 1. Fig. 3 is a sectional view on the line 3 3 of Fig. 1.

Referring to the drawings, 10 designates c the body of the hearing, which may be made of brass or other suitable metal, and 11 is the back for the body and is preferably made of malleable iron, but may also be made of other suitable metal. The back extends longitu- 5 dinally of the bearing between the end lugs 12 and has depending sides 13, provided with side lugs 14 of suitable size and shape. The back is made to conform to the usual outline of the bearing and takes the place, in effect, of so much brass or other metal, and being much cheaper than the brass thereby effects a great saving in the cost of manufacture of the bearing without inanyway destroying its identity and without impairing its strength or in any Way shortening its life. The depending sides of the back are seated against shoulders 15 on the body, and the ends of the back.

are seated against shoulders 16 at the ends of the bearing.

In car-axle bearings of the universal type a central convex circular portion is provided way in which this result may be effected andwhich consists in providing the back with a number of openings 17, separated by radial ribs or bridges 18, which are connected at their inner ends to a circular rib 19 and at Ztheir outer ends to'the ends and sides of the back. In the casting operation the body metal will run in and fill up these openings in the back and lie flush with the outer face of the back. The'edges 20 of theribs and other portions of the back surrounding the openings therein are preferably dovetailed, so that a secure and permanent connection will be effected between the body metal and the back.

' It is 'apparentthat the back may be cut out into skeleton form in a great variety of ways to accommodate the body metal in the manner described, and I do not limit myself to any particular construction of skeleton back, nor do I limit myself to the embodiment of a skeleton back with a bearing of the universal type or to car-axle bearings alone, but desire to cover the use of a skeleton back of this character with all kinds of journalbearings.

In the drawings I have illustrated the bearing provided with a lining 27, of Babbitt metal or other lubricating material, and a central opening 19; but they may be provided or omitted, as desired.

A journal-bearing embodying my invention can be manufactured at much less cost than those bearings which are made wholly of brass or other bearing metal, and the back is so rigidly and efiectively united with the body by my invention that it forms to all intents and purposes an integral parttherewith and the hearing is as strong as if cast solid.

Having thus fully described my invention,

what I claim, and desire to secure by Letters Patent, is-

1. A journal-bearing comprising a body and a back, said back being provided with a number of openings extending entirely therethrough and separated by ribs and said body being located beneath and within said back and filling said openings.

2. A journal-bearing comprising a body, and a back for the body made of a different kind of metal and provided at its central portion with circularly-arranged and alternate openings and ribs, the openings being filled with the-body metal.

3. A journal-bearing comprising a body, a back for the body made of a difierent kindof metal and having a circular central rib, radial ribs extending therefrom and openings between said ribs to receive the body metal.

4. A journal-bearing comprising a body and a back made of different kinds of metal, said back being provided with openings extending entirely therethrough, said body being located beneath and within said back and filling said openings, said openings being separated by ribs having dovetailed edges to form locking engagement with the body metal.

5. A journal-bearing provided with a circular convex central portion on its back and comprising a body and a back made of different kinds of metal, said back being provided at said convex portion with openings extending entirely therethrongh and filled with the body metal, said openings being separated by radially-disposed ribs.

GEORGE A. WOODMAN.

Witnesses:

R. D. HOPPING, JAY E. VAN VLACK. 

